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Finding the Fourth Proportional to 27,543.43, 38,006.85 and 15,604.21

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Solution

The fourth proportional to 27,543.43, 38,006.85 and 15,604.21 is: 21,532.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,543.43 : 38,006.85 = 15,604.21 : x
  2. Step 2: Convert to fraction form
    27,543.43/38,006.85 = 15,604.21/x
  3. Step 3: Cross multiply
    27,543.43x = 38,006.85 × 15,604.21
  4. Step 4: Simplify right side
    27,543.43x = 593,066,868.84
  5. Step 5: Solve for x
    x = 593,066,868.84/27,543.43
  6. Step 6: Final answer
    x = 21,532.06

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.